<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        .box {
            width: 200px;
            height: 200px;
            background-color: pink;
            /*padding-left: 20px;*/
        }
        .damao{
            background-color: purple;
            padding-left: 20px;
            padding-top: 20px;
        }
    </style>
</head>
<body>
<div class="box">
    <div class="damao">123</div>
</div>
</body>
</html>